Why did stepany Meyer chose breaking dawn for the name of her book?
Because she wanted the stupidest name to end the crappest series in the world. Of course, it backfired and people loved it because they thought it was so 'romantic'
No, currently there are only 4. The books now are Twilight, New Moon, Eclipse, and Breaking Dawn. There would have been a 5th book, from Edward's perspective until part of the book got leaked and Stephanie Meyer chose not to finish it. So currently, no, there are not more then 4 books and there will probably never be more.
There is not a 5th twilight book by Stephanie Meyer. Though she did publish an excerpt off of the movie "Eclipse" shortly after Breaking Dawns release. Its called "The Short Second Life of Bree Tanner". But technically its not an official series book. The series ended with Breaking Dawn. Sorry this came late:)
do you mean is there going to be a twilight book after breaking dawn? if so, no there is not going to be a continuation of the series. Stephenie Meyer was working on a book called midnight sun which was edward's percpective on twilight. the rough draft of the midnight sun got leaked and so Stephenie Meyer took a break from writing it. does this answer your question?
Yes, Stephanie Meyer has written two books after Breaking Dawn. Here is the list of books Meyer wrote after Breaking Dawn: Prom Nights from Hell (this was a collection of stories where Meyers wrote a section of short stories; 2007) The Host (2008) The Short Life of Bree Tanner (2010) The Twilight Saga: The Official Illustrated Guide (2011)